/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.sdk.io;



import org.apache.avro.Schema;

import org.apache.avro.file.CodecFactory;

import com.bff.gaia.unified.sdk.io.FileBasedSink.DynamicDestinations;

import com.bff.gaia.unified.vendor.guava.com.google.common.collect.ImmutableMap;



import java.util.Map;



/**

 * A specialization of {@link DynamicDestinations} for {@link AvroIO}. In addition to dynamic file

 * destinations, this allows specifying other AVRO properties (schema, metadata, codec) per

 * destination.

 */

public abstract class DynamicAvroDestinations<UserT, DestinationT, OutputT>

    extends DynamicDestinations<UserT, DestinationT, OutputT> {

  /** Return an AVRO schema for a given destination. */

  public abstract Schema getSchema(DestinationT destination);



  /** Return AVRO file metadata for a given destination. */

  public Map<String, Object> getMetadata(DestinationT destination) {

    return ImmutableMap.of();

  }



  /** Return an AVRO codec for a given destination. */

  public CodecFactory getCodec(DestinationT destination) {

    return AvroIO.TypedWrite.DEFAULT_CODEC;

  }

}